Answer:
v=7 m/s
Explanation:
momentum definition
The amount of movement or linear momentum is the product of velocity by mass. Velocity is a vector while mass is a scalar. As a result we obtain a vector with the same direction and direction as the velocity.
The magnitude of the momentum is calculated like this:
p=m*v Formula (1)
where:
p: momentum (kg*m/s)
m: mass (kg)
v: velocity (m/s)
Data
m = 2.5kg
p = 17.5kg m/s
Problem development
We replace the data in the formula (1)
17.5kg m/s = 2.5kg*v
v = 7 m/s
Answer:
3.True. The magnitude of momentum is the same
Explanation:
Let's propose the solution of the problem
The initial moment is
p₀ = m v
The final moment
= m (-v)
p₀ = -
Now we can review the claims
1. False. We see that the moment module is the same, but its direction changes
2. False. The impulse is a vector
3.True. The magnitude of momentum is the same
Answer:
See answer
Explanation:
The area of the circular loop is given by:
The magnetic flux is given by:
is parallel to
and
is constant in magnitude and direction therefore:
Part A)
initially the flux is
after the interval
the flux is
now, the EMF is defined as:
,
if we consider very small then we can re-write it as:
then:
Part B)
When looked down from above, the current flows counter clockwise, according to the right hand rule, if you place your thumb upwards (the direction of the magnetic field) and close your fingers, then the current will flow in the direction of your fingers.